Gate operating and locking device



2 Sheets-Sheet 1.

(No Model.)

0. B. JOHNSON- GATE OPERATING AND LOCKING DEVICE.

No. 593,159. Patented Nov. 2, 1897.

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(No Model.) 2 Sheets-Sheet 2.

G. B. JOHNSON.

GATE OPERATING AND LOCKING DEVICE.

No. 593,159. Patented Nev. 2,1897.

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UNITED STATES CIIAUNCEY BENNETT JOHNSON,

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OF LOS ANGELES, CALIFORNIA.

SPECIFICATION forming part of Letters Patent No. 593,159, dated November 2, 1897.

Application filed April 21,1896. Serial No. 588,530. (No model.)

To a whom it may concern:

Be it known that I, CHAUNOEY BENNETT JOHNSON, a citizen of the United States, re siding at the city of Los Angeles, in the county of Los Angeles, State of California, have invented certain new and useful Improvements in Mechanically-Operated Gates and Devices for Looking and Unlocking the Same, of which the following is a full, clear, and exact description or specification, reference being had to the annexed sheet of drawings and to the letters marked thereon. 7

My invention, which relates to mechanically-operated gates and devices connected therewith for'locking and unlocking the same, has for its object to enable a person approaching the gate, either on horseback or when driving a vehicle, to open'the gate when advancing toward it, so as to pass through the same, together with the horse which he may be riding orthe vehicle which he may be driving, without dismounting; also, to close the gate after the horse or vehicle has passed through the gateway.

On the annexed sheet of drawings, Figure 1 is a perspective View of the framing, gateposts, weights and pulleys, and operating gear, together with the gate constituting my invention, some parts being broken away in the drawings in order to show more clearly 'the gear and latch. Fig. 2 is a section of the double gate-post through which the gate slides, the latch, and catch. Fig. 3 is an elevation, on a larger scale than in Fig. 1, of the toothed pinion, showing the quadrant therein for allowing the sprocket-wheel to be moved some distance at the time of opening the gate prior to rotating the toothed pinion. Fig. 4

is an edge elevation of the sprocket-wheel and its studs,hereinafter referredto. Fig. 5 is a plan, on a smaller scale, showing the sliding gate and rack. Fig. 6 is an inverted plan of the under side of the top beam of the framing on a larger scale. Fig. 7 is an elevation, on the same scale as Fig. 6, of the upper part of the gate-posts, the connecting-beam, the pulleys, the ropes, and other attachments to the sprocket-chain. Fig. 8 is an elevation of the sprocket-gear, one of the gate-posts, and a section of the top or cross beam. Fig. 9 is an elevation of one of the end posts which carry the cross-beam at the top, the pulleys, ropes,

and weights, on the same enlarged scale as Figs. 6 to S, the cross-beam being shown 111 section. Fig. 10 is a side elevation of the end of the framing, the pulleys, one of the ropes, and weight.

end posts D, as shown more especially in Figs.

1 and 5. v y

In the soil constituting the roadway or entrance which the gate A is used for opening or closing a sill E is sunk flush with the surface of the land, and upon it is carried arail 7 5 F, preferably of iron. At each end of the under bar of the gate there is attached an antifrictiou-roller G, having a groove formed in it, so that it can engage with and rotate upon the rail F when the gate is moved either into the opened or closed position, and by reason of its passing between the two gate-posts B and B while traveling upon the antifrictionrollers G Gr it is capable of not only being moved easily horizontally, but is also at all times maintained in the vertical position. In the gate-posts B and B a shaft H is situated, as shown more particularly at Figs. 1 and 7. Upon this shaft H the toothed pinion I is carried, the teeth of which engage with the 0 toothed rack J, (more particularly shown by a dotted line in Fig. l and in section at Fig. 7,) fastened to the under rail of the gate, from which arrangement it follows that as the toothed pinion I is rotated either in a forward 5 or backward direction so the gate A is'correspondingly moved into the open or closed position. Upon this same shaft H there is carried the sprocket-wheel K, Figs. 1, i, 7, and 8, the teeth of which engage the openings in the sprocket-chain K.

On the inner face of the sprocket-wheel K there projects the stud M, which engages with the quadrantal slot N in the pinion I, as more The gate-post is 60 The outer ends of the horizontal beams 65 which arrangement it follows that as the sprocket-wheel K and the toothed pinion I are both carried loosely upon the shaft H the rotation imparted to the sprocket-wheel K is communicated, to the toothed pinion I so soon as the stud M comes in contact with either end of the quadrantal slot N, whence it also follows that during the movement of the sprocket-wheel K with its stud M from one end of the quadrantal slot N to the other end thereof, the pin N during such period of motion not being in contact with either end of the slot N, the pinion I remains stationary during such time. NVhile the pinion I thus remains stationary as the sprocket chain and wheel are being operated, another stud O on the opposite side of the sprocket-wheel K comes in contact with a notch or recess in the lower end of therod P, suspended from the latch Q, attached to the gate-post, as shown at Figs. 1 and 2.

as to allow the stud 0 during the rotation of the sprocket-wheel K'to raise the rod P and then thelat'ch Q out of contact with the vertical face R of the catch attachment on the top rail of the gate, so that the gate is unlocked before the stud M on the opposite side of the sprocket-wheel has reached the end of the quadrantal slot N in the toothed pinion I, so that contact of the stud with the opposite end of the slot is established. As the pinion I continues to be rotated simultaneously which position it is ready to be again lifted by the stud O for raising the latch to again unlock the gate for being either opened or closed.

As a rider or driver is approaching the gateway from either side the uppermost of the weights S is laid hold of by the hand of the rider or driver and pulled downward, which has the effect through the rope connections of pulling the sprocket-chain K, so as to unlock the gate and then rotate the toothed pinion I for opening it. By pulling down the other weight S when in the upraised position the gear is operated in the opposite direction, and the gate is thereby closed.

The ropes are arranged duplex, as shownthat is to say, to each end of the sprocketchain two of the ropes T are attached, one of which passes over the pulleys U to the righthand end of the framing, and the other rope passes over the other pulleys U at the lefthand end of the framing, from which an rangement it follows that in respect of the two ropes which are attached to each end of .the sprocket-chain and the weights S attached to them when two ofthe weights S at opposite ends of the framing are intheir lowest position the corresponding end of the sprocket-chain is at its ighest position, and

g alternately when the two other weights S are in their highest position the end of the sprocket-chain to which they are attached is in its-lowest position, so that in whatever position the gate may bethat is to say, either opened or closed-it may be shut or opened on approaching it from either side.

Having now described the nature of my said invention and the best system, mode, or manner I am at present acquainted with for carrying the same into practical effect, what I consider to be novel and original, and therefore claim as the invention to be'secured to me by Letters Patent, isas follows: The length of the quadrantal'slot N is such 1. The locking and unlocking device, consisting of the sprocket-wheel, the studs on opposite sides of the sprocket-wheel, the quadrant slot in the toothed pinion, with which .one of the studs in the sprocket-wheel engages, the rod suspended from the latch, with which the other stud in the sprocket-wheel engages to lift the latch at the time of opening the gate, the latch attached to the gatef. post and the inclined stop, all operating to- I gether in the'manner and for the purposes, substantially as set forth.

therewith the gate A is opened. The rotation j 2, The combination of the gate, the toothed 1rack thereon, the toothed pinion engaging 5; with the toothed rack, the rail, the anti-friction-rollers rotating on the rail, the duplex gate-posts, the sprocket-wheel, the sprocketchain, the ropes extending from the sprocketchain, the pulleys from which the ropes pass, I the weights at the outer end of the ropes, the horizontal beams, to which the pulleys car- I rying the ropes are attached, the latch pivoted to the upper rail of the gate, the rod suspended from the latch and formed with a notch on its lower end, the stud on the 5 sprocket-wheel, with which said notch engages, and the. stop on the upper bar or rail of the gate, all operating together in the man- I ner and for the purposes. substantially as set forth.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

GIIAUNCEY BENNETT JOHNSON. Witnesses:

H. S. ROLLINS, ST. JOHN DAY. 

